Can SKA--Phase 1 go much beyond the LHC in supersymmetry search?

TL;DR

This paper explores SKA1's potential to detect dark matter signals from dwarf spheroidals, demonstrating it could surpass LHC capabilities in probing supersymmetric dark matter with relatively short observations.

Contribution

It shows that SKA1 can detect dark matter annihilation signals in supersymmetric models beyond LHC reach using radio observations of dwarf spheroidals.

Findings

SKA1 can detect dark matter signals for masses an order of magnitude higher than LHC.

Approximately 100 hours of observation are sufficient for potential detection.

The study uses the minimal supersymmetric standard model as a case illustration.

Abstract

We study the potential of the Square Kilometre Array in the first phase (SKA1) in detecting dark matter annihilation signals from dwarf spheroidals in the form of diffuse radio synchrotron. Taking the minimal supersymmetric standard model as illustration, we show that it is possible to detect such signals for dark matter masses about an order of magnitude beyond the reach of the Large Hadron Collider, with about 100 hours of observation with the SKA1.